نتایج جستجو برای: influenza b

تعداد نتایج: 961819  

Influenza is an acute respiratory disease caused by the influenza A or B virus. It often occurs in outbreaks and epidemics worldwide, mainly during the winter season. Significant numbers of influenza virus particles are present in the respiratory secretions of infected persons, so infection can be transmitted by sneezing and coughing via large particle droplets. The mean duration of influenza v...

Journal: :iranian red crescent medical journal 0
nima mirzaei department of biology, science and research branch, islamic azad university, tehran, ir iran; department of biology, science and research branch, islamic azad university, tehran, ir iran. tel: +98-2188962343 talat mokhtari azad department of virology, tehran university of medical sciences, tehran, ir iran rakhshandeh nategh department of virology, tehran university of medical sciences, tehran, ir iran hoorieh soleimanjahi department of virology, tarbiat modares university, tehran, ir iran nour amirmozafari department of microbiology, tehran university of medical sciences, tehran, ir iran

background: sequence variations in glycoproteins of influenza virus surface impel us to design new candidate vaccines yearly. ectodomain of influenza m2 protein is a surface and highly conserved protein. m2e in influenza vaccines may eliminate the need for changing vaccine formulation every year. objectives: in this study, a recombinant baculovirus containing m2e and cholera toxin subunit b fus...

Journal: :acta medica iranica 0
mehrnaz rasoolinejad department of infectious disease, imam khomeini medical center, tehran university of medical sciences, tehran, iran. sirous jafari department of infectious disease, imam khomeini medical center, tehran university of medical sciences, tehran, iran. mahnaz montazeri department of infectious disease, imam khomeini medical center, tehran university of medical sciences, tehran, iran. maryam mohseni department of infectious disease, imam khomeini medical center, tehran university of medical sciences, tehran, iran. maryam foroughi iranian research center for hiv/aids, tehran university of medical sciences, tehran, iran. banafsheh moradmand badie iranian research center for hiv/aids, tehran university of medical sciences, tehran, iran.

the serious influenza-associated complications among immunodeficient individuals such as those who are infected with human immunodeficiency virus (hiv), highlights the importance of influenza vaccination in these people. therefore, the current study aimed to investigate the antibody responses to influenza vaccine in this group. two hundred subjects were recruited, during autumn 2010 and 2011, t...

Journal: :jundishapur journal of microbiology 0
naeme javid department of microbiology, golestan university of medical sciences, gorgan, ir iran abdolvahab moradi department of microbiology, golestan university of medical sciences, gorgan, ir iran; department of microbiology, school of medicine, golestan university of medical sciences, gorgan, iran. tel: +98-9112733321; +98-1732421289, fax: +98-1732440225 alijan tabarraei department of microbiology, golestan university of medical sciences, gorgan, ir iran; infectious diseases research center, gorgan, ir iran masoud bazouri infectious diseases research center, gorgan, ir iran

conclusions the prevalence of pandemic influenza viruses in recent years has caused financial losses as well as mortalities around the world. this shows the importance of the rapid diagnosis of common serotypes in our society. using real-time rt-pcr is recommended for the early diagnosis and the rapid identification of the individuals infected with pandemic influenza virus. background timely di...

2017
Aye M. Moa David J. Muscatello Robin M. Turner Chandini R. MacIntyre

BACKGROUND Influenza B is characterised by two antigenic lineages: B/Victoria and B/Yamagata. These lineages circulate together with influenza A during influenza seasons, with varying incidence from year to year and by geographic region. OBJECTIVE To determine the epidemiology of influenza B relative to influenza A in Australia. METHODS Laboratory-confirmed influenza notifications between 2...

2015
Anne Mosnier Saverio Caini Isabelle Daviaud Jean-Louis Bensoussan Françoise Stoll-Keller Tan Tai Bui Bruno Lina Sylvie Van der Werf Jean Marie Cohen

BACKGROUND Describing the circulation of influenza viruses and the characteristics of seasonal epidemics remains an essential tool to optimize the strategies of influenza prevention and control. Special attention has been recently paid to influenza B in the context of the availability of a quadrivalent vaccine, containing two influenza B strains. METHODS We used data from a practitioners-base...

2016
Monica Tafalla Marleen Buijssen Régine Geets Marije Vonk Noordegraaf-Schouten

This review was undertaken to consolidate information on the epidemiology and burden of influenza B, as well as the circulation patterns of influenza B lineage in 9 European countries. Following a comprehensive search of peer-reviewed and gray literature sources, we found that published data on influenza B epidemiology and burden are scarce. Surveillance data show frequent co-circulation of bot...

Journal: :Drug discoveries & therapeutics 2016
Siriwan Charyasriwong Takahiro Haruyama Nobuyuki Kobayashi

Influenza A and B virus infections are serious public health concerns globally. However, the concerns regarding influenza B infection have been underestimated. The currently used anti-influenza drugs have not provided equal efficacy for both influenza A and B viruses. Susceptibility to neuraminidase (NA) inhibitors has been observed to be lower for influenza B viruses than for influenza A virus...

Journal: :Vaccines 2021

Influenza B is responsible for a significant proportion of the global morbidity, mortality and economic loss caused by influenza-related disease. Two antigenically distinct lineages co-circulate worldwide, often resulting in mismatches vaccine coverage when predictions fail. There are currently operational issues with gold standard serological assays influenza B, such as lack sensitivity requir...

Behnaz Heydarchi Fatemeh Fotouhi Hosna Gomari Masoumeh Tavassoti Kheiri, Mojgan Taghizadeh Rouzbeh Bashar Seyed Masoud Hosseini Seyedeh Fahime Mousavi

Background: Influenza virus is a major infectious pathogen of the respiratory system causing a high degree of morbidity and mortality annually. The worldwide vaccines are decided and produced annually by World Health Organization and licensed companies based on the samples collected from all over the world. The aim of this study was to determine phylogenecity and heterogenecity of the circulati...

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